code: def test_pickleable(self):
      inner_env = PointEnv(goal=(1.0, 2.0))
      env = NormalizedEnv(inner_env, scale_reward=10.0)
      round_trip = pickle.loads(pickle.dumps(env))
      assert round_trip
      assert round_trip._scale_reward == env._scale_reward
      assert np.array_equal(round_trip._env._goal, env._env._goal)
      step_env(round_trip, visualize=False)
      env.close()
      round_trip.close()
  
file_path: garage/tests/garage/envs/test_normalized_env.py
imports: import pickle
  import numpy
  from garage.envs import PointEnv
  from garage.envs.normalized_env import NormalizedEnv
  from tests.helpers import step_env
label_desc: Use image node_id 1 for calling the TestNormalizedEnv obj's underlying member method code with example usage: obj.test_pickleable() without return types